Comments provides you with the opportunity to add notes to certain fields in almost all areas of the program.
Click right on the respective field and select <Create comment>from the context menu.
You can categorise the comments by colours, and can give a certain weight or importance to different colours. In this example, red means 'very important'.
The field you added a comment to will be marked with a triangle of the colour of the respective category. When running the mouse over the coloured triangle, a tooltip shows the details to your comment. You can also add several comments to one field, and different comments can be added to one element in different fields.
Just open the context menu for an overview of all comments in the comment overview window.
Alternatively, you can open the comment overview window from the Ribbon (on the ‘Data’ tab).